文献类型：期刊文献

英文题名：Understanding the Adsorption Behavior and Mechanism of Pt(IV) and Pd(II) on Super Amino-Modified Monodispersed PGMA Microspheres

作者：Wang, Fuchun Wang, Wankun Wu, Jianming Su, Xiang Feng, Senlin

第一作者：王福春;Wang, Fuchun

机构：[1] School of Materials and Metallurgical Engineering, Guizhou Institute of Technology, Guiyang, 550003, China; [2] Key Laboratory of Light Metal Materials Processing Technology of Guizhou Provinces, Guiyang, 550003, China

第一机构：贵州理工学院材料与冶金工程学院

通信机构：School of Materials and Metallurgical Engineering, Guizhou Institute of Technology, Guiyang, 550003, China|贵州理工学院材料与冶金工程学院;贵州理工学院;

年份：2024

卷号：63

期号：1

起止页码：607-616

外文期刊名：Industrial and Engineering Chemistry Research

收录：EI(收录号：20240215336076);Scopus(收录号：2-s2.0-85181560786)

语种：英文

外文关键词：Adsorption - Metal ions - Palladium compounds - Platinum compounds

摘要：The present investigation described the application of high-capacity amino-group-functionalized polyglycidyl methacrylate monodispersed microspheres (PGMA-N) in the adsorption of Pt(IV) and Pd(II) ions from simulated wastewaters. The adsorption capacities of Pt(IV) and Pd(II) on PGMA-N were determined to be 3.93 and 4.99 mmol·g-1, respectively, at 298 K and pH ～ 4. These capacities are greater than those reported for other adsorbents in the literature. Rapid adsorption kinetics were observed for Pt(IV) and Pd(II) on PGMA-N; equilibrium was reached within 15 min. Co2+, Cu2+, Ni2+, Fe3+, Al3+, and Cr3+ were utilized as representatives for competitive adsorption of metal ions, and the good separation selectivity of PGMA-N was observed for Pt(IV) and Pd(II) at pH 1-3. The pH range in which the adsorbent demonstrated optimal selectivity was extended to 1-6 with the addition of EDTA. The -NH2, -NH- functional groups on PGMA-N form stable, five-membered chelate rings through synergistic coordination with Pt(IV) or Pd(II), as determined by zeta potential, pH titration, XRD, FTIR, and XPS analysis. ? 2023 American Chemical Society.